Greenhouse heating system and method utilizing waste hot water from electric power plant

Abstract

The invention provides a greenhouse heating system and method utilizing waste hot water from an electric power plant. The greenhouse heating system comprises a water guide pipeline, a water return pipeline, a standby heat source, a water distributor, a greenhouse internal pipeline, a water collector and a heat-exchange unit; the water guide pipeline is communicated with the heat-exchange unit andthe electric power plant, the water return pipeline is communicated with the heat-exchange unit and the electric power plant, the standby heat source is communicated with an inlet of the water distributor, a water outlet of the water distributor is communicated with the greenhouse internal pipeline, the greenhouse internal pipeline is communicated with an inlet of the water collector, a water outlet of the water collector is communicated with the heat-exchange unit, and the heat-exchange unit is communicated with the inlet of the water distributor. Waste hot water from the electric power plantis introduced for heating for the greenhouse, which is much environmentally friendly and free of pollution as compared with the conventional energy sources; as waste hot water from the electric powerplant is subjected to heat exchange twice through the heat-exchange unit and a water-source heat pump, utilization rate of waste hot water is increased greatly and energy-saving performance is better.

Description

technical field [0001] The invention relates to the technical field of greenhouses, in particular to the technical field of a greenhouse heating system utilizing waste hot water from a power plant. Background technique [0002] With the continuous improvement of people's living standards in our country, people's demand for food, plants, etc. is getting higher and higher, so it is necessary for the growth of plants to break through the restrictions of seasons, and the application of greenhouses is becoming more and more extensive. However, during the heating process, greenhouses often It needs combustion and heating, which will produce a lot of waste and cause environmental pollution. At present, the waste hot water of power plants is often used for heating, and many attempts have been made to recycle waste hot water. [0003] For example, the Chinese patent "CN205005612U" discloses a system for improving the planting efficiency of greenhouses by utilizing the temperature and...

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Problems solved by technology

[0004] In order to overcome the problem in the prior art that when the power plant stops working, the inside of the greenhouse cannot be heated, and on the other hand, the waste hot water of the power plant is directly used for heating, and once leakage occurs, it will cause great pollution to the greenhouse environment. The present invention Provided is a greenhouse heating system and heating method using waste hot water from a power plant

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